CRYPTIC CROSSWORD No. 16,851

ACROSS: 1 Po-faced. 5 Raceme. 9 Oarsman. 10 Organza. 11 Lei. 12 Plea-bargain. 13 Minus. 14 Oxidation. 16 Nuisances. 17 Occur. 19 Dairy cattle. 22 Imp. 23 Satsuma. 24 Congeal. 26 Orphan. 27 Supreme. DOWN: 1 Problem. 2 Foreign minister. 3 Cam. 4 Dance. 5 Rhomboids. 6 Cigar. 7 Mandarin Chinese. 8 Tannin. 12 Pasta. 14 Once again. 15 Atone. 16 Nudist. 18 Repulse. 20 Youth. 21 Ticks. 25 Nap.